
@OTHER{WikipediaNMF,
title = {Non-negative matrix factorization},
note = { \url{http://en.wikipedia.org/wiki/Non-negative_matrix_factorization} },
author = {Wikipedia},
key = {1234}
}


@INPROCEEDINGS{Berry06algorithmsand,
    author = {Michael W. Berry and Murray Browne and Amy N. Langville and V. Paul Pauca and Robert J. Plemmons},
    title = {Algorithms and applications for approximate nonnegative matrix factorization},
    booktitle = {Computational Statistics and Data Analysis},
    volume = {Volume 52},
    year = {2006},
    pages = {155--173}
}

@article{numeroReducer,
author = {Hadoop Documentation},
title = {Map Reduce Tutorial},
note = { \url{http://hadoop.apache.org/mapreduce/docs/r0.22.0/mapred_tutorial.html} }
}

@MISC{05abstractemail,
    author = {Michael W. Berry and Murray Browne},
    title = {Email Surveillance Using Nonnegative Matrix Factorization},
    year = {2005}
}

@INPROCEEDINGS{Lee01algorithmsfor,
    author = {Daniel D. Lee and H. Sebastian Seung},
    title = {Algorithms for Non-negative Matrix Factorization},
    booktitle = {In NIPS},
    year = {2001},
    pages = {556--562},
    publisher = {MIT Press}
}

@inproceedings{IBM_NMF,
 author = {Gemulla, Rainer and Nijkamp, Erik and Haas, Peter J. and Sismanis, Yannis},
 title = {Large-scale matrix factorization with distributed stochastic gradient descent},
 booktitle = {Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining},
 year = {2011},
 pages = {69--77},
 publisher = {ACM}
} 

@MISC{Nikolaus07learningthe,
    author = {Ralf Nikolaus},
    title = {Learning the Parts of Objects using Non-negative Matrix Factorization (NMF)},
    year = {2007}
}

@INPROCEEDINGS{liu2010,
  author = {Liu, Chao and Yang, Hung-chih and Fan, Jinliang and He, Li-Wei and Wang, Yi-Min},
  title = {Distributed nonnegative matrix factorization for web-scale dyadic data analysis on mapreduce},
  booktitle = {Proceedings of the 19th international conference on World wide web},
  year = 2010,
  pages = {681--690},
  publisher = {ACM}
}

@article{gradient,
author={Chih-Jen Lin},
title = {Projected Gradient Methods for Non-negative Matrix Factorization}
}

@article{least,
author={H. Kim and H. Park},
title = {Nonnegative matrix factorization based on alternating nonnegativity constrained least squares and active set method}
}